任何语言中单词字符的正则表达式 [英] Regex for word characters in any language

问题描述

测试 PHP 正则表达式引擎，我看到它只将 [0-9A-Za-z_] 视为单词字符.非 ASCII 语言(例如希伯来语)的字母与 [\w] 不匹配为单词字符.是否有任何 PHP 或 Perl 正则表达式转义序列可以匹配任何语言的字母?我可以为我希望使用的每个字母添加范围，但用户总是会用意想不到的语言给我们带来惊喜！

Testing the PHP regex engine, I see that it considers only [0-9A-Za-z_] to be word characters. Letters of non-ASCII languages, such as Hebrew, are not matched as word characters with [\w]. Are there any PHP or Perl regex escape sequences which will match a letter in any language? I could add ranges for each alphabet that I expect to be used, but users will always surprise us with unexpected languages!

请注意，这不是用于安全过滤，而是用于标记文本.

Note that this is not for security filtering but rather for tokenizing a text.

推荐答案

Try [\pL_] - 请参阅参考资料

Try [\pL_] - see the reference at

http://php.net/manual/en/regexp.reference.unicode.php

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